5f4d7eca1a89fa59590c55535a6f129e42c9644c30b64f22f3e134c51f530c2c

Analysis

max time kernel
145s
max time network
146s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/03/2024, 15:01

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General

Target

5f4d7eca1a89fa59590c55535a6f129e42c9644c30b64f22f3e134c51f530c2c.exe
Size

197KB
MD5

1423f82221930912c20f8d6fe1153529
SHA1

660a1718536792b6b51a1d040e085b95bab18b63
SHA256

5f4d7eca1a89fa59590c55535a6f129e42c9644c30b64f22f3e134c51f530c2c
SHA512

a5b74244dbce3ee4142a70b378f95250a63f26a4879d8de44e23ac734d91d4ce5688dc1cf4f1d3b0559de9a41404dc128d4182e868509bc04c7106a1fbc116d0
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOD:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXX6

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3028	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1136	iuyhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\iuyhost.exe	5f4d7eca1a89fa59590c55535a6f129e42c9644c30b64f22f3e134c51f530c2c.exe
File opened for modification	C:\Windows\Debug\iuyhost.exe	5f4d7eca1a89fa59590c55535a6f129e42c9644c30b64f22f3e134c51f530c2c.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2208	5f4d7eca1a89fa59590c55535a6f129e42c9644c30b64f22f3e134c51f530c2c.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 3028	2208	5f4d7eca1a89fa59590c55535a6f129e42c9644c30b64f22f3e134c51f530c2c.exe	29
PID 2208 wrote to memory of 3028	2208	5f4d7eca1a89fa59590c55535a6f129e42c9644c30b64f22f3e134c51f530c2c.exe	29
PID 2208 wrote to memory of 3028	2208	5f4d7eca1a89fa59590c55535a6f129e42c9644c30b64f22f3e134c51f530c2c.exe	29
PID 2208 wrote to memory of 3028	2208	5f4d7eca1a89fa59590c55535a6f129e42c9644c30b64f22f3e134c51f530c2c.exe	29

C:\Users\Admin\AppData\Local\Temp\5f4d7eca1a89fa59590c55535a6f129e42c9644c30b64f22f3e134c51f530c2c.exe
"C:\Users\Admin\AppData\Local\Temp\5f4d7eca1a89fa59590c55535a6f129e42c9644c30b64f22f3e134c51f530c2c.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\5F4D7E~1.EXE > nul
  2⤵
  - Deletes itself
  PID:3028

C:\Windows\Debug\iuyhost.exe
C:\Windows\Debug\iuyhost.exe
1⤵
- Executes dropped EXE
PID:1136

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\debug\iuyhost.exe

Filesize
197KB

MD5
52b03ff9f9d2bab8726e6b1a6e92ade7

SHA1
ef282db528e20f3531c093f8b8ba5a856e29a295

SHA256
a3cc4e14d5b49655c240029f947644ca8dbc704ade0cf3934cee5e61d0500a61

SHA512
0c312171eba9194be2503854790686e26e7d55febf63906587122bb534b347632b6797e830c47eb61d67bd948f9de12e37bf0c1ce278fa16ef9ea8030a34ff1e

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